Dexter w



(No Model.)

' D. w. GOODELL- SEWING MACHINE.

Patented June 28, 18 87.

FIE-7.

INVENTDR:

N. PETERS. 'Pholo-Llmognphur. Washington, D. a

UNI ED STATES PATENT Creme.

DEXTER W. GOODELL, OF FLORENCE, MASSACHUSETTS, ASSIGNOR TO THE FLORENCEMACHINE COMPANY, OF SAME PLACE.

SEWlNG-MACHINE.

SPECIFICATION forming part of Letters Patent l ?o. 365,514, dated June28, 1887. Application filed March 20, 1892. Serial No. 55,811. (Nomodel.)

To all whom it may concern:

Be it known that I, DEXTER W. GooDELL,

of Florence, in thetown of Northampton, county in connection with thedrawings furnished and forming a part of the same, is a clear, true,

and complete description of the several fea tures of my invention.

One portion of my improvements relates to such feed-graduating mechanismas embodies a controlling-lever and a rotative cam for setting saidlever, and has for its object the pre vention of the accidental rotationof said cam during the regular operation of the feed-bar.

Another portion of my invention relates to a gage-plate connected withthe feed-graduating cam for indicating not only, as heretofore, thecharacter of stitch resulting from any particular adjustment of saidcam, but also for indicating at the same time the numbers of the needleand thread best suited for use in such adjustment.

After a detailed description of a machine embodying all of myimprovements, the features deemed novel will be specified in the severalclaims hereunto annexed.

Referring to the drawings, Figure 1 is a top on edge. Fig. 3 is an edgeview of the rear.

end of thefeed-graduating lever detached. Fig. 4 is a perspective viewof the feed-graduating cam detached. Fig. 5 is a top and sectional viewof the front end of the shuttledriving lever detached. Fig. 6 is a topand sectional view of the shuttle-carrier detached. Fig. 7 is anenlarged top View of the thumbpiece which rotates the feed-graduatingcam and my improved gage-plate. Fig. 8 is an end View of the machineturned on edge, as in Fig. 2.

The feed-graduating lever A is novel only in that its edge at its rearend is vertically serrated, as at a, Fig. 3. The cam B, for varying theposition of said lever, is novel only in that the edge thereof whichbears against the lever is also serrated, as shown at b, Fig. 4.

Heretofore these coincident or bearing edges of lever and cam have beensmooth, and therefore the intermitting pressure against the lever by thefeed-bar during the reciprocating movements of the latter have renderedthe cam liable to more or less accidental rotation and a consequentdeparture from the desired adj ustment,resulting in stitches of variedlength. With the serrated faces described the cam cannot be rotatedexcept designedly by means of the usual thumb-piece, c, and thereforethe length of stitch is never varied except intentionally.

Heretofore feed-graduating thumb-pieces in some form or another havebeen provided with gage-scales of various kinds, indicating the properposition of the thumb-piece for securing any desired length of stitch.In some cases said gage-scales have been accompanied by separate platesinscribed with numbers indicating the various sizes of needles and theproper number of thread to be used with each in making various lengthsof stitch. My feed gage-plate Chas, as heretofore,an annular series ofgage-marks surrounding the base of the thumb-piece,as at cl,forindicating the number of stitches to the inch; but as a novel feature ithas also an outlying annular series of marks, 6, indicating the propernumber of needle to be used in working under the varied adjustments, andstill another annular series of marks, f, for indicating the number ofthe thread best suited in each case, thus enabling the unskilledoperative at a glance to equip the machine in its best form for anyparticular service. The pointer on the thumb-piece projects so as tooverly the gage-plate, and enables a prompt, convenient, and accurateadj ustment, and also points toward the proper needle and thread to beemployed. The shuttledriving lever D is coupled to the shuttle-carrier Eby means of a clamp-screw, g, and the k socketed shank h. The machine ishinged to tilted position; but the weight of the sewingmaehine head andits mechanism is so great that a prop beneath the bed-plate will notadmit ofmuch elevation of the front edge of the plate, because theweight of the head must be counterpoised if thebed-plate be so fartilted as to afford convenient accessibility to the underlyingmechanism, and a spring-catch involves manipulation for releasing it,which is obviated by the use of the hinged links, as shown, which socounterpoise the weight of the machinehead that the bed-plate isinclined slightly forward for presenting the underlying mechanism in themost convenient and accessible position.

Having thus described my in vcntion, I claim as new and desire to secureby Letters Patent 1. The C(JillblllittlOTlfiVlhll the serratedfeedgraduating lever, of the rotative cam provided with a serrated edgefor contact with the serrated edge of said lever, substantially asdescribed.

2. The combination, with the thumb-piece and the rotativefeed-regulating cam, of a pointer 0n the thumb-piece and a gage-scalesurrounding the thumb-pieec, and having a series of concentric annularmarks indicating the number of stitches to the inch and the number ofneedles and of thread suitable for use with each variation in the feedadjustment, substantially as described.

DEXTER \V. GOODELL.

Vitnesses:

THOMAS HALLEN, SIDNEY L. CLARK.

